20289-2220 DON 987

 
 
20h 28m 54.30s -22 19' 54.9" P.A. 77 sep 5.7 mag 9.69,11.70 Sp A2IV
 
 
Coord 2000
20289-2220
Discov num
DON 987
Comp
Coord arcsec 2000
20 28 54.30 -22 19 54.9
Date first
1920
Date last
2010
Obs
7
Pa first
75
Pa last
77
P.A. Now (θ)
77°
Sep first
4.9
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
9.69
Mag sec
11.70
delta mag (ΔM)
2.01
Spectral class
A2IV (white)
Pri motion ra
-011
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
76.7
Precise sep
5.67
Constellation
Capricornus
SAO
189331
Tycho2
6341-00350-1
Gaia DR2
65321836288
HD
194894
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20289-2220 DON 987 1998 5 76 5.9 9.69 11.70 A2IV D 202854.30-221954.9
20289-2220 DON 987 1999 6 77 5.8 9.69 11.70 A2IV D 202854.30-221954.9
20289-2220 DON 987 2010 7 77 5.3 9.69 11.70 A2IV 202854.30-221954.9

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